Disable compile_commands for specified targets

[star-hengxing]

Is your feature request related to a problem? Please describe.

Maybe related https://github.com/xmake-io/xmake/issues/6140

Describe the solution you'd like

set_policy("build.compile_commands", false)

Describe alternatives you've considered

No response

Additional context

No response

[waruqi]

现在可以指定 target 去生成了。https://github.com/xmake-io/xmake/pull/6572

[star-hengxing]

这里是在命令行指定，但设置 policy 给某些 target 禁用会更方便，比如一些 codegen 出来的代码。

[Issues-translate-bot]

Bot detected the issue body's language is not English, translate it automatically.

---

This is specified on the command line, but it is more convenient to set policy to disable certain targets, such as some codes produced by codegen.